ZIP code
80303
Boulder, CO
80303 covers Boulder in Boulder County, with 24,934 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 80303. Methodology
ZIP code map of 80303

About ZIP code 80303
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 80303. Not ACS. Methodology
People in 80303
Race
- White20,009
- Black or African American273
- American Indian or Alaska Native145
- Asian2,034
- Native Hawaiian and Pacific Islander23
- Other race749
- Two or more races2,095
Hispanic or Latino (any race): 2,055
Age
- Under 101,438
- 10 to 192,367
- 20 to 298,227
- 30 to 393,172
- 40 to 492,356
- 50 to 592,314
- 60 to 692,437
- 70 to 791,778
- 80 and older1,239
Income and housing in 80303
Education
- High school graduate98.5%
- Bachelor's degree78.9%
- Graduate degree42.7%
Places covering 80303
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Boulder83.2%
- Paragon Estates3.8%
- Eldorado Springs1.0%
- Louisville0.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Boulder County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
11.8% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 80303
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 18,037 | |
| 2006 | 17,014 | |
| 2007 | 17,820 | |
| 2008 | 17,517 | |
| 2009 | 17,760 | |
| 2010 | 17,957 | |
| 2011 | 23,198 | 17,949 |
| 2012 | 22,936 | 17,750 |
| 2013 | 22,740 | 18,020 |
| 2014 | 23,505 | 18,480 |
| 2015 | 23,295 | 18,470 |
| 2016 | 24,321 | 17,590 |
| 2017 | 24,734 | 17,530 |
| 2018 | 24,631 | 17,390 |
| 2019 | 25,081 | 17,310 |
| 2020 | 25,709 | 16,900 |
| 2021 | 24,810 | 16,430 |
| 2022 | 24,865 | 16,410 |
| 2023 | 24,934 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 80303
12 nearest ZIP centroids (any distance)
- 80305Boulder2.1 miPop 16,101 · Income $120,933
- 80027Louisville3.1 miPop 33,998 · Income $153,165
- 80310Boulder3.5 miPop 7,530 · Income —
- 80301Boulder5.0 miPop 25,252 · Income $92,974
- 80025Eldorado Springs5.8 miPop 101 · Income $128,145
- 80026Lafayette6.4 miPop 32,549 · Income $115,031
- 80304Boulder6.5 miPop 25,634 · Income $121,534
- 80007Arvada7.4 miPop 18,290 · Income $171,017
- 80021Broomfield7.6 miPop 35,562 · Income $105,645
- 80020Broomfield7.7 miPop 53,589 · Income $114,039
- 80302Boulder8.2 miPop 29,751 · Income $60,649
- 80544Niwot9.2 miPop 0 · Income —
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 80303, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 80303 FAQ
- What city is ZIP code 80303 in?
- 80303 is in Boulder, CO.
- What county is 80303 in?
- 80303 is in Boulder County.
- What is the median household income in 80303?
- The median household income in 80303 is $77,344.
- Which ZIP codes are near 80303?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 80303.